Covered separable fastener



Jan. l5, 159.46. D, MARlNsKY ETAL 2,392,934

COVERED SEPARABLEv FASTENER Filed April 2o, 194s v sheets-sheet. 2

INVENTORS Patented Jan. 15, 1946 COVERED SEPARABLE FASTENER DavisMarinsky and Louis H. Morin, Bronx, N. Y.

AppueauonApi-u zo, 1943, serial ivd- 183,736

(ci. 24zo5 11 Claims.

Vin producing what is commonly referred to as covered Stringers. Theinvention further comprises a method of attaching the cover tapes to thelinks or scoops of the Stringer.

The novel vfeatures of the invention will be best understood from thefollowing descriptions when taken together with the accompanyingdrawings, in which certain embodiments of the invention are disclosed,and in which the separate parts are designated by suitable referencecharacters in each of the views; and in which:y

Fig. 1 is a plan view of a part of two Stringers made according to theinvention, with part oi the construction being broken away and insection.

' Fig. 2 is a section on the line 2--2 of Fig. 1.

Fig. 3 is a partial Section on the line 3,-3 of Fig. 4 is a view similarto Fig. 2, showing only one Stringer, and showing a modification.

Figs. 5 and 6 are views similar to Fig. 4. showing other adaptations'ofthe invention.

Fig. 7 is a view diagrammatically illustrating the ilrst step in theassemblage of the cover tape with the fastener Stringer in the operationof producing said Stringer, and;

Fig. 8 is a section detailed view of part of the construction shown inFig. 7, illustrating the forming operation employed for securing thefree I edge of the cover tape in position on one surface of the links orScoops,

In the production of what is commonly referred to as covered separablefastener stringers, it has been the custom or practise to stitch orotherwise secure a cover tape to each Stringer of the fastener, and thisoperation has been expensive and diillcult, particularly in contendingwith the links or scoops attached to the Stringer tape. Further,

. it has produced a weak cover tape construction,

port of outer edge portions of the covered tape upon each link or scoopof the fastener Stringer.

In Figs. 1 and 2 of the drawings, I0 and II represent the tapes of twoStringers to which are attached links or scoops I2 and I3. The links orscoops are spaced longitudinally of .the beaded edges IB, I of the tapesIl) and II in the usual manner.

In the construction Shown, both of the links or scoops |2-I3 are of thesame construction, and are of what is known, as the double action type,that is to say, both side Surfaces of the links or scoops are of thesame form and construction, thus providing coupling of the strngersWithout regard for'arrangement, and further providing movement of the`usual sliders in either direction on the Stringer to couple and uncouplethe same.

Looking at the upper link I2 of Fig. 1 of the drawings, the structure asit appears on side Surfaces of each link will be described; I6represents theprojecting or male portion, and Il the recess or femaleportion which receives the male portion I6 ofl the link of an opposedStringer. In the l recess I'i is formed a projectingrounded knob I8which is adapted to enter the aperture I9 formed in the member I6. Theprojection I8 and recess or aperture I9 form the secondary couplingwhich prevents transverse Separation of the coupled Stringers.

Considering Figs. 7 and 8 of the drawings, in the process of producingeach Stringer, the following steps of procedure will be followed, and.

for purposes of illustration, the formation of the Stringer I I will bedealt with, but as both stringers are identical, the process isnaturally the same in the edge 2| of this tape in position. In otherprocesses where the link or Scoop is crimped onto the tape, the edge 2|may be Somewhat enlarged or beaded, and of course, the adjacent Side ofthe link will be formed to engage this edge 2 I, as will be apparent.

In forming the links or scoops, the Surface 22 thereof which is to becovered, has inwardly of the outer coupling end thereof a longitudinalrecess 23 at the outer side of which is a raised flange 24,

It will be understood that in attaching the links or scoops the covertape lies ilatly upon the stringer tape Il. However. after the linkshave been attached, the tape 20 is then folded up over onto the surface22, and the edge thereof is inserted into the recess 23 of each of thelinks or scoops I3, after which the raised flange 24 is depressed, by a.suitable tool, vsuch as a punch, pressure roller or the like 26 with thelink sultably supported and backed, so as to force the projection 24into the recess 23, producing the pinching eifect as indicated at 21, inFig. 8 of the drawings.

This operation compresses the edge portion 25 of the tape 20 to a slightextent, thus securely anchoring said edge within the recess 23. Themovement of the projection 24 into the position shown in Fig. 8 willalso have a tendency to stretch the fabric of the tape 2l over thesurface 22,thus producing a neat and smooth appearance of the tape alongsaid surface of all of the linksv or scoops of the stringer.

Thecoupling of the stringers together is illustrated in Figs. 1, 2 and3, from which it will be apparent that as the links are broughttogether,` the nose or outer end of each link engages, and

doubles under, the extreme edge of the cover tape of the opposedstringer in the stretch between links. Thus, as shown particularly inFig. 2, the extreme edge 25a of the free end 25 of cover tape 20, in thestretch between its adjacent links I3, has been doubled under by andrestsY upon the outer end of link l2; and, similarly, the extreme edgeof the free end 25' of cover tape 20' has been doubled under by andrests upon the outer end of link I3. As will be understood. the severalreference characters having primes aixed designate correspondingelements, on the opposite Stringer parts, to those already described.

In Figs. 4. 5, and 6 of the drawings are shown slight modificationswhich differ from Figs. 1 to- 3 inclusive, primarily in the constructionof the stringer tape, as well as the cover tape. In all of theseadaptations, the cover tape constitutes part of the strlnger tape.

In Fig. 4, a wide tape is folded around a cord or core 28, as seen at 28in producing the beaded edge to which the links or scoops 30 aresecured. These links or scoops are the same as the links or scoops I2',I3. One edge portion 3| of the tape forms the normal mounting orattaching edge of the Stringer, whereas the other edge portion 32.constitutes the cover part of the tape, and is similar in all respectsto the tape 20. In other words, its free side edge v33 is retained intherecess 34 of the links or scoops by the reformed flange portion 35,.the latter being similar to the flange 24.

Fig. 5 diners from Fig'. 4 simply in that the Stringer tape is foldeddirectly upon itself, as seen at 38, and two cords or bead formingstrands 31 and 33 are laid on opposite sides of the folded portion toform the retaining bead. of the Stringer tape. With this constructionthe free edge 39 of the tape is similar to the end 3|, and the end 40which is arranged two cords or strands 44 and 4l slmllarto the cords orstrands 31, 33.

With all of the constructions shown in Figs. 4, 5, and 6,'the cords orstrands 23, 31, 3l, 44, and. 4B may be stitched, cemented, or otherwisesecured to the tapes prior to the attachment of the links or scoopsthereto. However, when the links or scoops are' formed by die castmaterial, the pre-attachment'. of the cords is not necessary, in that.the casting material will extend into and be firmly anchored in theinterstices of the braid of the tapes, as well as the cords, where thelatter are exposed in securely anchoring the tapes within the links orscoops.

With the construction as shown in Figs. 1 to 3 inclusive, the cover tapemay be of a different texture, as well as color, than that which isemployed in the mounting tape of the stringers. In the specially woventape, as illustrated in Fig. 6,

m the cover tape 42 may be of a lighter or thinner structure than theremainder of the tape.

In producing covered fastener stringers by the process which comprisesfirst forming the links or scoops, and then pinching or otherwiseattachg5- ing the same to the mounting tape and strips, the

links will be formed with the tape edge engaging means, comprising therecesses and the outwardly projecting flange on one wall of the re-vcess. It will thus be apparent that these devices 30 then constitutearticles of manufacture and are produced as such.

From the standpoint of producing fasteners of the class underconsideration, where the links or scoops have the means on one surfacethereof for attaching a cover strip or other member, it

will be apparent that the precise method defined in the presentillustrations need not necessarily be followed, as a cover strip orother member may be attached to the securing means of 49 the links orscoops independent of attachment of said links or scoops to the Stringertape. When a cover strip is employed the free edge of this strip can bestitched or otherwise secured to th Stringer tape or to the support inconnection with which the fastener is mounted.

Considering Figs. 'I and 8 of the drawings the above method of procedurewill be understood, bearing in mind that the cover tape 20 would beomitted from Fig. 7, and this tape or the edge portion 25 thereof wouldrst be attached to the links or scoops in the manner indicated in Fig.8, and thereafter the unattached side edge portion of this strip wouldbe secured in position, as previously stated. Y

It will be understood that the cover strips employed or the coverportions of the tape as with the structure shown in Figs. 4, 5 and 6will be made of a width to bring the free edge portion thereof inposition to enter the recess of the links or scoops. With theconstruction as shown in Figs. 1 to 3 inclusive, the strip 20 togetherwith the Stringer tape ID--II will be guided into the machine in thedesired relationship, and the dies vthemselves will act as guides inproperly positioning the strip or the edge portion 2u thereof in theattachment of the links or scoops. In some similar to the end 32 of thestructure, as seen instances, means may be provided tol at leastvtemporarily retain the (strips 20 on the Stringer tapes in maintainingproper relationship of these parts prior to the attachment of the linksor scoops. l

Having fully described our invention, .what we claim as new and desiretosecure by Letters Patent is:

1. The combination with a series of separable aseaou fastener links eachhaving a mounting end'portion including jaw portions opening at one endof each of the links and coupling end portions adja- ,cent the otherends of the links, of a mounting tape and a cover tape both embraced bysaid jaw portions and issuing therefrom in the direction of the centrallongitudinal plane of the links, said mounting end portions havingopposite'side faces equally spaced from said plane, said cover tapeextending laterally 'from the jaw portions, along one of said side facesand along a part of the side face of the coupling end portion of eachlink, a recess extending into each link in the coupling end portionthereof in said side face to receive the free edge of the cover tape andmeans adjacent each recess deformable to clamp the edge of the covertape therein.

2. The vcombination with a series of separable fastener links eachhaving a mounting end portion including jaw portions opening at oneendof each of the links and coupling end portions adjacent the other endsof thelinks, and a mounting tape embraced by said jaw portions-andissufrom the coupling end of the link to leave such l coupling endexposed and each recess having an upstanding wail portion deformable toclamp the tape edge therein.

6. In a separable slide fastenerthe combina-Y tion with a pair ofopposed flexible mountingtapes each havinga series of fastener linkssupported in spaced relation thereon, each link having a mounting endportion embracing the edge of the mounting tape and a couplingendportion extending beyond the edge of said tape, each' link havingcontinuous substantially fiat side faces extending from the mounting endto the coupling end thereof, and each link having a, recess in one ofsaid side faces of the coupling end portion of ing therefrom in thecentral longitudinal plane of the links, said mounting end portionshaving opposite side faces` equally spaced from said plane, of a covertape extending outwardly from the mounting tape and along one of saidsidev faces and along a part of the side faceI of the couplingv endportion of each link, a recess extending into each link in the couplingend portion thereof in said side face to receive the free edge of. thecover tape and means to secure such free edge of the cover tape in saidrecess.

3. The combination with a series of separable fastener links each havinga mounting end portion including jaw portions opening at one end of eachof the links and coupling end portions adjacent the other ends of thelinks, and a mounting tape embraced by said jaw portions and issuingtherefrom in the central longitudinal plane of the links, said mountingend portions having opposite side faces equally spaced from said plane,of a cover tape extending outwardly from the mounting tape and along oneof said side faces and along a part of the side face of the coupling endportion of each link, a recess extending into each link in the couplingend portion thereof in said side face to receive the free edge of thecover tape and means adjacent each recess deformable to clamp the edgeof the cover tape therein.

4. The combination with a series of separable fastener links supportedin spaced relation on a mounting tape, each link having a mounting endportion embracing the edge of said tape and aA coupling end portionextending beyond the edge of the tape, and said mounting end portionsand coupling end portions having continuous substantially fiat sidefaces, of a cover tape extending from the mounting tape along one sideface of the mounting end portion and coupling end portion. of each link,a recess in the adjacent side face of each of said coupling endportions, the free edge of the cover tape entering said recesses, andmeans to secure the same therein, each of said recesses being located ata distance from the coupling end of the link to leave such coupling endexposed.

5. The combination with a series of separable fastener links supportedin spaced relation -on a the link, of a pair of opposed cover tapes eachone extending from the mounting tapes along one of the side faces of thelinks, the free edges of the cover tapes being caught in said linkrecesses, each recess having an upstanding wall portion deformabletociampthe tape edge therein, and

each recess being located at a distance from the coupling end of thelink to leave such coupling -end exposed with'respect to the cover tapeheld by the link but adapted to fit underneath the edge of the opposingcover tape.

7. In a separable slide fastener the combination with a pair of opposedflexible mounting tapes each having a series of fastener linkssupported'in spaced relation thereon, each link hav ing a mounting endportion embracing the edge of the mounting tape and a coupling endportion extending beyond the edge of said tape, each link having sidefaces extending from the mounting end to the coupling end th'ereof, andeach link having a recess in one of said side faces of the coupling endportion of the link, of a, pair of opposed cover tapes each oneextending from the mounting tapes along one of the side faces of thelinks, the free edges of the cover tapes being caught in said linkrecesses, each recess-having Y an upstanding wall portion deformable toclamp the tape edge th'erein, and each recess being located vat adistance from the coupling end of the link to leave such coupling endexposed with respect to the cover tape held by the link but adapted tofit underneath the edge of the oppos- 8. The combination with a seriesof separable fastener links supported in spaced relation on a mountingtape, each link having a mounting end portion embracing the edge of saidtape and a-coupling end portion extending beyond the edge of the tape,and said mounting end portions and coupling end portions having sidefaces, of a cover tape extending from the -mounting tape along one sideface of the mounting end portion and coupling end portion of each link,a recess in mounting tape, each link having a, mounting end portionembracing the edge of said tape and a coupling end portion extendingbeyond the edge of the tape, and said mounting end portions and couplingend portions having continuous subsaid wall portion being deformable toclamp the tape edge therein.

9. A strlnger for separable fasteners, said stringer comprising aplurality of links spaced longitudinally of one edge portion or amounting tape, each link comprising a mounting end portion and acoupling end portion, outer ends oi said mounting and coupling endportions being of the same width, each link intermediate said ends beingof a width common to the width' of said ends throughout the majorportion of the length of the link producing substantially nat opposedside surfaces throughout the maior portion of the length of the links, acover tape having one edge portion anchored to the mounting end portionof the links, said cover tape being arranged ushly upon one sidesurface. of all of the links of a stringer, and the other edge portionof said cover tape being secured to the coupling end portions of thelinks within the bounds .of said side surfaces. A

l0. A stringer for separable fasteners, said Stringer comprising aplurality of links spaced longitudinally of one edge portion of amounting tape, each' link comprising a mounting end portion and acoupling end portion, outer ends of said mounting and coupling endportions being of the same width, each link intermediate said ends beingof a width common to the width of said ends throughout the maior portionof the length of the link producing substantially iiat asesinas opposedside surfaces throughout'th'e major portion of the length of the links,one common side surface of all of the links having a transverse stringercomprising a plurality of links spaced longitudinally of one edgeportion of a mounting tape, each link comprising a mounting end portionand a coupling end portion, side surfaces of each link beingsubstantially ilat throughout the major portion of the length thereofand spaced Y at equal ldistances from the link center deiined by themounting tape, one common side surface of the mounting end portion ofall of the links having recesses extending vthroughout', theA full widthof the links. a cover tape arranged upon l said side surface of all ofthe links, said cover tape extending from the mounting tape with thefree edge portion thereof arranged in the recesses of the links, andmeans retaining the free edge portion of the cover tape in the recessesof each of said links.-

DAVIS MARINSKY. LOUIS H. MORIN.

